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Radiator hose fine with vacuum coolant filler but leaks with slight pressure #5165099 07/19/19 08:09 AM
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atikovi Offline OP
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Maybe just a lesson to learn but had flushed out and cleaned the cooling system of the 2017 Spark after the radiator trans cooler leaked oil into the cooling system. Connected a vacuum filler and it held strong vacuum so I filled it with coolant. Today I start the car to warm it up enough to check the transmission fluid level, but after 5 minutes coolant starts leaking from many spots on the upper radiator hose. I know transmission oil is bad for the rubber hoses but didn't think it would leak right away. Ordered both radiator hoses but wonder if the smaller heater hoses could be damaged too.

Re: Radiator hose fine with vacuum coolant filler but leaks with slight pressure [Re: atikovi] #5165105 07/19/19 08:13 AM
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Snagglefoot Offline
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Are they leaking right through the rubber wall, or at the hose clamps.


If you want the job done right......do it yourself.
Re: Radiator hose fine with vacuum coolant filler but leaks with slight pressure [Re: atikovi] #5165121 07/19/19 08:22 AM
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atikovi Offline OP
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Rubber wall.

Re: Radiator hose fine with vacuum coolant filler but leaks with slight pressure [Re: atikovi] #5165344 07/19/19 12:07 PM
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Chris142 Offline
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Bunch of leaks in a line?


02 Wrangler Napa high milage 10w40
87 F250 Valvoline 15w40
07 fjcruiser Car lube plus 10w30
Z400 castrol T 10w40
Can am Maveric edge 5w40
57 case tractor Chevron sae30
Re: Radiator hose fine with vacuum coolant filler but leaks with slight pressure [Re: atikovi] #5165465 07/19/19 01:58 PM
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atikovi Offline OP
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Yes, sort of.

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